Sinusoidal light stimulator using fluorescent tubes for the study of flicker perception.

J Richez; J J Meyer

doi:10.1007/bf02441051

Home/Archive/PubMed

PubMed · 195159

Sinusoidal light stimulator using fluorescent tubes for the study of flicker perception.

J Richez·J J Meyer

View original source ↗Export metadata ↓

Abstract

The source did not provide an abstract. Follow the original record for more information.

Explore related subjects

Fluorescence Humans Photic Stimulation Visual Perception Journal Article

Keep this discovery

Explore connections, maps & timelines

BibTeX RIS

J Richez, J J Meyer. 1977. Sinusoidal light stimulator using fluorescent tubes for the study of flicker perception.. https://doi.org/10.1007/bf02441051

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

PubMed2007

Photoswitching of the fluorescent protein asFP595: mechanism, proton pathways, and absorption spectra.

Explore the source record for details and available documents.

Fluorescence↗

PubMed2007

Lambda/4 resonance of an optical monopole antenna probed by single molecule fluorescence.

We present a resonant optical nanoantenna positioned at the end of a metal-coated glass fiber near-field probe. Antenna resonances, excitation conditions, and field localization are directly probed in the near field by single fluorescent molecules and compared to finite integration technique simulations. It is shown that the antenna is equivalent to its radio frequency analogue, the monopole antenna. For the right antenna length and local excitation conditions, antenna resonances occur that lead to an enhanced localized field near the antenna apex. Direct mapping of this field with single fluorescent molecules reveals a spatial localization of 25 nm, demonstrating the importance of such antennas for nanometer resolution optical microscopy.

Fluorescence↗

PubMed2007

An automated fluorescence-based method for continuous assay of PP2A activity.

Protein serine/threonine phosphatase (PP2A) is a major cellular enzyme implicated in the control of numerous signaling processes. The accurate measurement of PP2A activity in crude cell lysates, immune complexes, and purified preparations provides insight into the function and regulation of this essential enzyme, which, in turn, can lead to a better understanding of the signaling pathways that it modulates. The method presented here utilizes 6,8-difluoro-4-methylumbelliferyl phosphate (DiFMUP) and a FLEXstation for the continuous measure of PP2A activity associated with many different protein preparations. This automated fluorescence-based assay offers several distinct advantages over colorimetric and radioactive assays of phosphatase activity including (1) decreased substrate preparation time, (2) real-time kinetic data, (3) high sensitivity, and (4) the capability to analyze a wide variety of phosphatases.

Fluorescence↗